The registered nurse is discussing care of an infant diagnosed with a patent ductus arteriosus (PDA) with a nursing student. The registered nurse determines that the nursing student needs further teaching regarding a PDA when the student states that which circulatory change is a characteristic of this disorder?

A. Bottle-feed with diluted fruit juice:
Incorrect: Diluted fruit juice is not recommended for infants with diarrhea. Fruit juices, even when diluted, may contain sugars that can exacerbate diarrhea. It's important to focus on water or rehydration solutions.
B. Discontinue breast-feeding until the diarrhea resolves:
Incorrect: Breast milk is an essential source of nutrition for infants, and discontinuing breastfeeding is not recommended, even during episodes of mild diarrhea. Breast milk helps maintain hydration and provides essential nutrients.
C. Provide an increased intake of water.
Correct Answer: Maintaining hydration is crucial during episodes of diarrhea. Offering the infant increased water intake helps prevent dehydration. Rehydration solutions specifically designed for infants can also be recommended.
D. Avoid all solid foods:
Incorrect: While avoiding certain solid foods may be recommended in some cases, it's not necessary to completely avoid all solid foods for a 12-month-old with mild diarrhea. The emphasis should be on maintaining hydration and offering easily digestible foods.

A. The child is too young to receive antibiotics: This statement doesn't address the actual reason for not prescribing antibiotics for croup, which is primarily due to its viral nature.
B. "Antibiotics are not indicated unless a bacterial infection is present."
Explanation:
Viral laryngotracheobronchitis, commonly known as croup, is typically caused by a viral infection, most commonly by the parainfluenza virus. Antibiotics are not effective against viruses. Therefore, unless a bacterial infection is also present, prescribing antibiotics is not necessary or beneficial in treating croup.
C. The child may be allergic to antibiotics: While antibiotic allergies are a consideration, it doesn't explain why antibiotics are not prescribed for viral illnesses like croup.
D. The child still has the maternal antibodies from birth and does not need antibiotics: Maternal antibodies can offer some protection against infections, but the primary reason for not using antibiotics in viral infections like croup is because antibiotics are ineffective against viruses.